Specialised Process Challenge Devices (PCDs) for verification of cleaning efficiency

  • Simulate different types of surfaces
  • Simulating different types of cleaning challenges
  • Compatible with different test soils
  • Compatible with different evaluation methods
  • Compatible with fluorescence based protein detection test
Aseptium VeriTest Inoculated tags

VeriTest Tags

Cleaning of surgical instruments and endoscopes is considered the most difficult and most important of all decontamination processes. It is the only process that physically removes contamination from instrument surfaces and only clean surfaces can be effectively disinfected and sterilised. Routine verification of cleaning processes is essential to ensure compliance, and patients and staff safety.

VeriTest PCDs use VeriTest Tags – uniquely shaped samples, already inoculated with challenge-specific test soils. As surgical instruments come in a variety of materials. We believe that, for example, it is inappropriate to verify the inside of a flexible polymer endoscope channel with a stainless steel test.

For more realistic results we offer VeriTest Tags in:

Stainless steel made from 316L grade stainless steel for verification of contamination removal from stainless steel surfaces most commonly found on surgical instruments.

Aseptium VeriTest Tag Stainless Steel

Bright polymer for easy visual verification of non-metal surfaces commonly found in minimally invasive surgical instruments and inside of flexible endoscopes and lumens.

Dark polymer special variant of a polymer material compatible with fluorescence based protein detection technologies. It has equivalent physical properties to the bright polymer but does not affect fluorescence based test results.

VeriTest Multi

Typically, process challenge devices (PCDs) only test one surface in one orientation – but all surgical instruments are three dimensional. This results in a shadowing effect, exposing different surfaces of the same instrument to different cleaning conditions.

This means that instruments are not cleaned evenly all around. Therefore, it is essential to evaluate all surfaces at the same time to properly verify the process. VeriTest Multi checks quality of cleaning of multiple surfaces at the same time: horizontal top and bottom side as well as vertical ones. Additionally it verifies cleaning ability inside of narrow gaps like ones found in box joint instruments.

VeriTest Multi is compatible with all variants of VeriTest tags – it is a true multitool.

Why use VeriTest

  • Ensure compliance to standards and guidelines in every cycle
  • Rapidly respond to problems and reduce service and maintenance costs
  • Closely monitor performance and process quality
  • Reduce the risk to patients and staff
  • Avoid high costs of late detection of problems with equipment, chemistry and water quality
  • Optimised design for use with VeriTest Tags only
  • Realistic internal cleaning conditions
  • Verification of variants for rigid and flexible endoscopes
  • Easy to use – plug directly to flushing ports in the washer


VeriTest Lumen

PCD for hollow instruments

VeriTest Lumen were designed to work specifically with VeriTest Tags to realistically simulate cleaning of internal walls of narrow lumens. Lumens are typically cleaned with water and chemicals being flushed through under pressure. The volume and character of the flow are the critical parameters for effective cleaning.

The volume of the flow inside of a lumen directly translates into velocity. A constant diameter lumen will produce constant velocity of the flow along its length – any change on the diameter will result in a change of velocity – this is analogous to a river flow slowing down when it widens. Character of the flow also depends on velocity – the faster the flow the more turbulent it becomes – again compare a fast flowing mountain river to a steady flow in the lowlands.

Any PCD intended for evaluation of internal cleaning performance must be able to replicate the same flow conditions as found inside of narrow lumens – otherwise the test is not realistic. VeriLumen capsules were specifically designed and optimised using Computational Fluid Dynamics (CFD), so the fluid flow does not significantly change in velocity.

Additionally, the VeriTag is placed inside of the VeriLumen such that it becomes one of the walls of the capsule. This way no additional turbidity is created inside.

VeriLumen is the first PCD designed specifically to imitate the internal environment of a medical instrument.

VeriTest Lumen: variants

VeriTest Lumen

Developed to simulate rigid endoscopes,
these PCDs come in 400mm length.
Available in 1mm, 2mm and 4mm internal diameter equivalents.

VeriTest Lumen FlexE

Designed especially to simulate flexible endoscope cleaning verification. These PCDs come in 1.5m lengths, in 1mm and 2mm internal diameter equivalents.

VeriTest ordering details

  • VeriTest Stainless Steel, pack of 20 (part number 018.1000)
  • VeriTest Tag Bright Polymer, pack of 20 (part number 018.1001)
  • VeriTest Tag Dark Polymer, pack of 20 (part number 018.1002)
  • VeriTest Multi (part number 018.1010)
  • VeriTest Lumen: 400 x 4mm (part number 018.1020)
  • VeriTest Lumen: 400 x 2mm (part number 018.1021)
  • VeriTest Lumen: 400 x 1mm (part number 018.1022)
  • VeriTest FlexE, pack of 2 x 1mm & 1 x 2mm (part number 018.0000)
Get in touch for more information and availability

To take full advantage of the VeriTest PCDs benefits, we recommend to use them with every cycle.